I can agree on the smaller army size Brad, with a population that near maxes at 15000 realistically, having more than 1500 troops as a standing army would be near insane(rough equivalient would be conscripting EVERY male between 18-27, who wasn't an essential support profession, eg blacksmith).
Now as a magical world the rules can be bent/broken in later mods, but for now I think this is fine.
And to echo an earlier poster, will Kingdom troops and Empire Scions be able to level and gain abilities.